Air-seal flushing apparatus.



H. D. MOISE.

AIR SEAL PLUSHING APPARATUS.

APPLIoATIoN ULEB M1119, 1900. RBNBWED 11111.13, 1010.

Patented July 20,1910.

WIr/YES tlhlllllilit Stlriflilild PAENT @FlilQEg HARMON I). MOESE, F`SUMTER, SOUTH CAROLINA, ASSIGNOR TO THE VALVELESS FLUSI-LTANK COMPANY, OF SUMTER, SOUTH CAROLINA.

Alli-SEAL FLUSHING A?PARATUS.

Speccaten. of Letters Patent.

Application filed April 19', 1909, Serial No. 4%,89L

Renewed January 13, 1910. Serial No. 537,934.

To all 'whom 1li may concern:

Be it known that l, Hannon D. fil/loisir, a citizen of the United States, residingl at Sumter, in the county of Sumter and ltate of South Carolina, have invented certain new and usefill. Improvements in Air- 'eal Flushing Apparatus; and l, do hereby Kde Clare the'iollowing` to he a full, clear, and exact description of the invention. such as will enable others skilled in the art to which it appertains to make and use the saine, erence being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part ot this specification.

This invention relates to cert-ain ynew and useful improvements in )flush tank apparatus and it has for its object the provision of means whereby valves controlling the outlet ot' the Hush reservoir or tank are entirely dispensed with and the liow ot liquid from the tank automatically prevented by means of an air seal or trap.

T o these endsand to such others as the invention may pertain, the saine consists in the peculiar arrangement 'and in the novel combination and adaptation of parts, all as will be more fully hereinafter described, shown in the accompanying drawings and then specically detined' inl the appended claims.

The invention is clearly illustrated in the accolnpanyinp, drawings which forni a part ot this specification and in which Figure l is a central vertical section taken through a flush tank apparatus,'showing the -Jtank, the float and its inlet and outlet connections. Fig. 2 is an enlarged detail edge view, partly 1n section, of the lower portion of the tank, showing the inclosed air bell .and a portion of the Siphon connected therewith, and Fig. 3 an enlarged detail view of the inlet valve and an inlet pipe connected therewith.

` Reference now beingl had to the details of the drawings by letter, 'A designates the flushing tank ol' ordinary constructnm and provided with the usual inlet pipe l which, in the present instance, is shown inter turned downward within the tank and ter initiating at its lower end at a point beneath a bell or chamber D which is secured within the tank at a point adjacent to the bottom thereof. The pipe E, which constitutes the raten-teu muy 26, loro.

equivalent of the long end of the gooseneck siphon E, is passed through the bottom of the tank and its open upper end terminatesat a point within the upper portion of the bell D, the open lower end of said bell being spaced a short distance above the bottoni of the tank. The siphon E may be of any of the ordinary well known forms of siphons, such as are commonly used in tlushing apparatas. In the present instance, I have shown the ordinary circularform. F is the.

ordinary valve used in the inlet pipe for regulating the supply of water to the tank. This valve may be ofiany form oi construction adapted to the purpose.

G designates an air inlet pipe communicating with the inlet pipe. B at a point below the valve F, the upper end of said air inlet pipe G being open' and extended to a pointabove the'normal line of liquid within the tank. .A valve is placed in this air inlet pipe to be set to regulate the amount or' air. H is a float which, in the present instance, is shown as occupying practically the entire upper portion of the tank, the bottoni line of said float being at the height of the liquid when the tank is charged, the end a et the float being adapted to be closed downward upon the liquid Within the tank by means of the usual lever b andchain d.

F rom the foregoing description, the operation or' the device will be readily understood. Liquid entering the inlet pipe B will enter beneath the bottom of the bell D below the level .ofthe'open end, or the short end E of the gooseneck siphon.- The air inlet pipe (if, it'will be noted, permits the air to enter the inlet pipe B, the air thus entering mingling Awith thel liquid within the pipe and being discharged with it beneath the open bottom of the bell and,

owing tothe difference, the air will at once separate itself' from the liquid by natural -laws and will occupy the space within the upper portion of the bell and, continuing to increase in volume, will -force the liquid as it enters the bell downward and out through the open space beneath the hell into the tank, this continuing until the liquid within the tank has reached its normal level.

It will be seen that the open end of the bell orshorty end of the siphon is thu'slpiio vided with ran effective air trap which twill prevent vthe water from entering the sipljlen until theflu'shing operation. The operation of flushing the tank consists merely in fore ing the end a of the ioat downward in the surfaceiof the liquid withlin the tank by means of theoperatimg chain CZ, this down ward pressure imparted by the iioat serving to force liquid from within the tank .into

the bell D where it enters the open upper' ,end of the dischar e pipe E, thus complcting the Siphon an discharging ihe `water 'therethrough from the tank.

' y"I have found from experiment that a determinedy quantity of air will so rfect the quickly charged with air as to cutoil,l si phonic action before it would otherwise stop.v p

When the tank has been flushed, it sometimes occurs that the bell D may stick, or

in other words the liquid may not all be emptiedinto the tank therefrom. This, of course, would preventthe formation el. a proper' air trap vwithin the bell and the oat7 being below the horizontal positionv and the supply valve for liquid being open,

` woonstantvflow and consequent waste'would occur, 'but in my improvement the liquid being sup liedto the tank containing` therein a certain quantity of air supplied through v thel air supply pipe-G, will at once again fill the upper portion ot' the bell and dischargethe liquid contained therein into the tank. The liquid that is first received within the bell uponthe terniinationof the Hushing of` the tank, when the bell. has not been cleared of liquid by the flush, inline diately forces a portion of the latter liquid through the discharge pipe E, thus furnish ing an ample attertlow, with-the reecaling of the bell,after which a suliicient amount l v of'air will enter the bell to 'torce the liquid within the same below the upper end oifthe discharge pipe, when the open end of the @easel pipe will again become air bound and no further liquid can escape therethrough until the tank isagain Yl'lushed in the usual way.

what I clain'l to be new and desire to secure by Letters -lfateiit is 1 l. A: iiush tank apparatus comprising a tank, a bell or chamber inclosed within the tank, an outlet pipe having its openvend within the upperA portion ot' the bell, an inlet pipe terminating at a point beneath the open- Having thus descrl'ied' my invention,

through the bottom of the tank and having its open'upijier end. disposed within the upper portion of thc'bell, an inlet pipe adapted to supply liquid beneath the open bottom of'the `bell at a point below the open end of the discharge pipe, and means for supplyiiig air lin the bell. l v

3. ln a flush tank apparatus, in combination with a tank, a bell'disposed within the tank and having an openbottorman inlet pipe communicating with the open lower end of the bell, an outlet pipe, the open end of which is dispsed within the upper portion of the bell above the lower edge of the bell, and eonnecgionsfwhereby air is supplied. to the bell.' y

4f. A flush tank apparatus comprising a tank,a discharge pipe communicating therewith, the upper end'of the discharge pipe extending upward into the tank and the lower end being returned upward tov forma liquid trap, a hell positioned over the upper end of the discharge pipel and inclosing `it and leaving space below and within the bell for the passage of the liquid and the retention ol the air trapped therein, a liquid supply pipe oriypiijies whereof the delivery end is positioned under the hell, and means Afor causingfaiifi to'be supplied to said bell and be lieltl trapped therein to prevent the dischargebf the liquid from the tank.

"3 mit lfiufihjtank apparatuscomprising a `t`i`nk, a float within the latter, means for delie tloat,a bell within the lowery pressing t portion et the tank, an outlet pipe having its open end within the upper portieri ot the belh'an inlet pipe `terminating at a point beneath ihe open, bottoni of the bell, and a valred air jet connection operated by the liquid passing through the inlet supply pipe. y

(i. il flush tank apparatus comprising a tank. a discharge pipe c i'iunicating therewith, the upper end of e discharge pipe extending into the tank and the lower end v i Y 'being returned upward to form va liquidA air trapped by the rlse and fall of the trap, a -bell positioned over the upper end liquid in the tank. 10

of the discharge pipe and inclosiug it and In testimony whereof I hereunto atx iny leaving a space below and within the bell signature in the presence oftwo witnesses.

' tion 'of the air trapped therein, a. pipe for Witnesses:

for the passage of the liquid and the reten- HARMON D. MOISE.

supplying liquid to the tank, and means for ADA K. FowLnR, supplying air to saidfspace additional to the FRANKLIN H. HOUGH. 

